From patchwork Thu Oct 5 11:30:23 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Marc-Andr=C3=A9_Lureau?= X-Patchwork-Id: 1843853 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256 header.s=mimecast20190719 header.b=ZTOR1uLx; dkim-atps=neutral Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=patchwork.ozlabs.org) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4S1TsH3MPwz1yqD for ; Thu, 5 Oct 2023 22:31:15 +1100 (AEDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qoMYx-0004bO-7P; Thu, 05 Oct 2023 07:30:39 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qoMYv-0004Zu-Ar for qemu-devel@nongnu.org; Thu, 05 Oct 2023 07:30:37 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qoMYt-0001i8-In for qemu-devel@nongnu.org; Thu, 05 Oct 2023 07:30:37 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1696505433; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=p1eJwZKR6fnb8ed41K60Zj80qY6tjHdUqdKD00T5SOM=; b=ZTOR1uLxeCJVUuXJ4sU2tPIZRmM4/jLu2Z6Uwjx0lIu69IIcY/qjQ9yFYt9LQ4tfJfmgYN 5D3O1UurpmGDM4hj1sVC2R/VFbnjKWRKIrkuky8gGBTOwPSZ57AxEW2bFBATn8zUKZKGf3 tdsac0cKbAmoJZrrfhgBlSdNL6m9DuU= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-650-gPG6-epkPByyvSWV-s3rZQ-1; Thu, 05 Oct 2023 07:30:32 -0400 X-MC-Unique: gPG6-epkPByyvSWV-s3rZQ-1 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.rdu2.redhat.com [10.11.54.4]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id B908481D785 for ; Thu, 5 Oct 2023 11:30:31 +0000 (UTC) Received: from localhost (unknown [10.39.208.2]) by smtp.corp.redhat.com (Postfix) with ESMTP id CEB082026D4B; Thu, 5 Oct 2023 11:30:30 +0000 (UTC) From: marcandre.lureau@redhat.com To: qemu-devel@nongnu.org Cc: =?utf-8?q?C=C3=A9dric_Le_Goater?= , kraxel@redhat.com, lersek@redhat.com, =?utf-8?q?Marc-Andr=C3=A9_Lureau?= Subject: [PATCH v4 0/3] WIP: ramfb: migration support Date: Thu, 5 Oct 2023 15:30:23 +0400 Message-ID: <20231005113027.1827078-1-marcandre.lureau@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.4 Received-SPF: pass client-ip=170.10.133.124; envelope-from=marcandre.lureau@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org From: Marc-André Lureau Hi, Implement RAMFB migration, and add properties to enable it only on >= 8.2 machines, + a few related cleanups. Cedric, did you get the chance to test the VFIO display/ramfb code? thanks v4: (Laszlo review and suggestions) - change migrate_needed() to assert(ramfb_exists) - rename vfio_display_needed() to vfio_display_migration_needed(), update the condition and associated comment - move the ramfb-migrate option check and add a check for ramfb=on - add a stub to fix compilation on some architectures v3: - add a "x-" prefix to properties, as they are not meant for users. - RAMFB now exports a ramfb_vmstate for actual devices to include - VFIOPCIDevice now has a VFIODisplay optional subsection whenever ramfb migration is required (untested) Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=1859424 Marc-André Lureau (3): ramfb: add migration support ramfb-standalone: add migration support hw/vfio: add ramfb migration support hw/vfio/pci.h | 3 +++ include/hw/display/ramfb.h | 4 ++++ hw/core/machine.c | 5 +++- hw/display/ramfb-standalone.c | 27 +++++++++++++++++++++ hw/display/ramfb.c | 19 +++++++++++++++ hw/vfio/display.c | 20 ++++++++++++++++ hw/vfio/pci.c | 44 +++++++++++++++++++++++++++++++++++ stubs/ramfb.c | 2 ++ 8 files changed, 123 insertions(+), 1 deletion(-)